/*******************************************************************************
 * Copyright 2008 www.softao.com
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
/**
 * Place holder for copyright, needs to be replaced before release.
 */
package com.softao.ming.gwt.drawing2d.client.ui;

import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.FocusWidget;

/**
 * Defines a canvas which can paint the details.
 */
public class Canvas extends FocusWidget {
	private static Element createUnderlyingElement(final int width,
			final int height) {
		Element result = DOM.createElement("canvas");
		//TODO: Deffer Bind the Canvas implementation
		result.setAttribute("width", width + "");
		result.setAttribute("height", height + "");
		result.getStyle().setProperty("width", width + "");
		result.getStyle().setProperty("height", height + "");
		return result;
	}
	
	private final Graphics mGraphics;
	
	/**
	 * Initializes a new instance of <code>Canvas</code>.
	 * 
	 * @param width
	 *            width of the widget
	 * @param height
	 *            height of this widget
	 */
	public Canvas(final int width, final int height) {
		super(createUnderlyingElement(width, height));
		this.mGraphics = new Graphics(this.getElement());
	}
	
	/**
	 * @return the graphics
	 */
	public final Graphics getGraphics() {
		return mGraphics;
	}
	
}
